SCSIO OpenIR  > 中科院边缘海地质重点实验室
Mesozoic Deformation and Its Geological Significance in the Southern Margin of the South China Sea
Zhu, RW; Liu, HL; Yao, YJ; Wang, Y; liuh82@126.com
2018
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
Volume17Issue:4Pages:835-845
AbstractThe pre-Eocene history of the region around the present South China Sea is not well known. New multi-channel seismic profiles provide valuable insights into the probable Mesozoic history of this region. Detailed structural and stratigraphic interpretations of the multi-channel seismic profiles, calibrated with relevant drilling and dredging data, show major Mesozoic structural features. A structural restoration was done to remove the Cenozoic tectonic influence and calculate the Mesozoic tectonic compression ratios. The results indicate that two groups of compressive stress with diametrically opposite orientations, S(S)E-N(N)W and N(N)W-S(S)E, were active during the Mesozoic. The compression ratio values gradually decrease from north to south and from west to east in each stress orientation. The phenomena may be related to the opening of the proto-South China Sea (then located in south of the Nansha block) and the rate at which the Nansha block drifted northward in the late Jurassic to late Cretaceous. The Nansha block drifted northward until it collided and sutured with the southern China margin. The opening of the present South China Sea may be related to this suture zone, which was a tectonic zone of weakness.
Department[Zhu, Rongwei; Liu, Hailing; Wang, Yin] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Zhu, Rongwei; Yao, Yongjian] Guangzhou Marine Geol Survey, Guangzhou 510760, Guangdong, Peoples R China; [Zhu, Rongwei; Wang, Yin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Subject AreaOceanography
WOS Keywordsouthern continental margin of the South China Sea ; Mesozoic deformation structure ; structural restoration ; proto-South China Sea
Funding ProjectMSG
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17126
Collection中科院边缘海地质重点实验室
Corresponding Authorliuh82@126.com
Recommended Citation
GB/T 7714
Zhu, RW,Liu, HL,Yao, YJ,et al. Mesozoic Deformation and Its Geological Significance in the Southern Margin of the South China Sea[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2018,17(4):835-845.
APA Zhu, RW,Liu, HL,Yao, YJ,Wang, Y,&liuh82@126.com.(2018).Mesozoic Deformation and Its Geological Significance in the Southern Margin of the South China Sea.JOURNAL OF OCEAN UNIVERSITY OF CHINA,17(4),835-845.
MLA Zhu, RW,et al."Mesozoic Deformation and Its Geological Significance in the Southern Margin of the South China Sea".JOURNAL OF OCEAN UNIVERSITY OF CHINA 17.4(2018):835-845.
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